Java Apache HttpComponents失败，HttpURLConnection可用于同一调用

我需要为其

httpime

多部分libs使用Apache

HttpComponents

。但是，当对

HttpComponents

和stock

java.net

类进行显然完全相同的调用时，

HttpComponents

失败：

private void getUrl(URI targeturl, String token) throws IOException {

    String AUTH = "Authorization";
    String OAUTH = "OAuth ";

    System.out.println("Impl1:");
    HttpGet htg = new HttpGet(targeturl);
    htg.addHeader(AUTH, OAUTH + token);
    HttpResponse response = new DefaultHttpClient().execute(new HttpGet(targeturl));
    System.out.println(response);
    String resp = EntityUtils.toString(response.getEntity());
    System.out.println(resp);

    System.out.println("\nImpl 2:");
    HttpURLConnection conn = (HttpURLConnection) uriToUrl(targeturl).openConnection();
    conn.setDoOutput(true);
    conn.setRequestMethod("GET");
    conn.setRequestProperty(AUTH, OAUTH + token);
    System.out.print(conn.getResponseCode());
    System.out.println(" " + conn.getResponseMessage());

    StringWriter writer = new StringWriter();
    IOUtils.copy(conn.getInputStream(), writer);
    System.out.println(writer.toString());
}

//for known good uris ONLY
private URL uriToUrl(URI uri) {
    try {
        return uri.toURL();
    } catch (MalformedURLException mue) {
        throw new Error(mue); //something is seriously fuxxored
    }
}

结果是：

Impl1:
HTTP/1.1 401 Unauthorized [Access-Control-Allow-Headers: Authorization, Access-Control-Allow-Methods: POST, GET, PUT, DELETE, OPTIONS, Access-Control-Allow-Origin: *, Content-Length: 51, Content-Type: application/json, Date: Sat, 20 Jul 2013 00:03:42 GMT]
{"status":401,"data":null,"error":["Unauthorized"]}

Impl 2:
200 OK
{"status":200,"data":{...},"error":null}

HttpComponents是客户端4.2.5，核心4.2.4，java是1.6.0-24。

---

设置对我来说是一样的，但肯定有一些不同。这是什么？

这是一个愚蠢的编码错误

HttpResponse response = new DefaultHttpClient().execute(new HttpGet(targeturl));

应该是

HttpResponse response = new DefaultHttpClient().execute(htg);